Extension Builders in West Kensington

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (20 reviews)

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Some of our top rated extension builders in West Kensington

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SIXTHART LTD
Rating: 5 out of 5
Extension Builder in West Kensington
We are an Architectural and Interior Design Studio. We effective planning and technical drawing services. Our Services - Site Survey -All Drawings with Cad Software (Demolish/Proposed) - Draft Planning - Pre Advice Planning - New Build Design - Loft Conversion - Home Extensions - 3D Visulation -Kitchen &Bathroom design projects - Preparation and submission of planning applications - Hourly\Daily Based CAD Services - 3D Modelling (Internal & External Visualisation) -Member of TAG (Traditional Architecture Group) -Bachelor’s Architectural Design Practice -NAAB -TMMOB
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Latest review:
Extensions- 16 Sep 2024
Erhan was excellent. He followed my project from start to finish and kept me updated throughout. Here to the next project!
Orland
Rating: 5 out of 5
Extension Builder in West Kensington
I have been working in building industry for 16 years . I started as electrician after I finished the college. Until 2010 I was doing electrical jobs full and partly rewiring houses . In 2010 I started painting and tiling flooring, kitchen and bathroom fitting ,loft conversion and rear extensions, getting together a small team when needed. I have trade insurance and qualifications. Kind regards Orland Bogdani
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Latest review:
Bathroom Fitting- 13 Jul 2023
We honestly can’t recommend Orland highly enough. He came in mid job after we got abandoned by some shady builders, and was just fantastic. Built us a wonderful bathroom in under a week - was polite, professional, arrived early and all his work was to a very high standard. Would definitely ask him to help with future projects!
CB brickwork
Rating: 5 out of 5
Extension Builder in West Kensington
Welcome to CB Brickwork. I’m Ciaran a bricklayer from Scotland and I moved to London 2 years ago. I’ve worked for large building companies for many years and now looking to take on projects with My Builder. I have an eye for detail and take pride in my work. Not to mention I am polite and courteous! I am happy to meet up and look at your project. I can also help you plan and create ideas for your dream design. Looking forward to chatting with you! Ciaran
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Latest review:
Bricklaying- 17 Mar 2022
Ciaran did a great job with building our wall. Great communication throughout and always kept us in the loop. Good time keeping and kept the work area very clean and tidy. Would highly recommend.
Belhus Construction Ltd
Rating: 5 out of 5
Extension Builder in West Kensington
Welcome to Belhus Construction Ltd, your premier design and build company serving the vibrant landscape of West London. With a steadfast commitment to excellence and innovation, we bring your architectural visions to life with precision and style. As a trusted name in the industry, Belhus Construction Ltd specializes in delivering bespoke construction solutions tailored to meet the unique needs of our clients across residential, commercial, and industrial sectors. From concept to completion, our dedicated team of professionals harnesses years of expertise and a passion for craftsmanship to redefine the skyline of West London. At Belhus Construction Ltd, we transform dreams into reality, one project at a time.
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Latest review:
Extensions- 12 Feb 2021
Micka is very professional and responsive to all my queries. Work finished to a very good standard.I am happy with my new side extension. I would use Qualityloft again.
2AM Construction
Rating: 4.6 out of 5
Extension Builder in West Kensington
Hi this is Ali I am electrical contractors with over 10 years of experience who covers all types of electrical work. I do both domestic and commercial installations, rewiring, fault finding, repairing, fire alarms, smoke alarms, emergency lighting, EICR Certificate
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Latest review:
Electrical- 3 Oct 2025
went very well - almost superb, maybe of 5 stars 4.9.
MM
Rating: 5 out of 5
Extension Builder in West Kensington
We are a highly experienced kitchen and bathroom design and installation company with over 20 years of proven expertise in delivering exceptional results. We provide a comprehensive, end-to-end service—from detailed consultation and bespoke design through to precise, high-quality installation—or a dedicated installation service tailored to your specific needs. Our work is defined by technical accuracy, refined craftsmanship, and a deep understanding of both aesthetics and functionality. We deliver bespoke kitchen and bathroom solutions across a full spectrum, from well-specified standard projects to luxury, high-end installations, all executed with exacting standards and attention to detail. Operating throughout London and the surrounding areas, we are committed to delivering a consistently high level of service, underpinned by expert guidance and industry knowledge. Every project is approached with a structured, client-focused process, ensuring clear communication, efficient delivery, and outstanding results. Regardless of the size or complexity of the project, we work in close partnership with our clients to accurately interpret their vision and requirements—translating them into expertly crafted spaces that meet the highest professional standards.
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Latest review:
We initially hired Michael to convert a bathroom into an office. After meeting him and discussing our longer-term plans, we quickly felt confident moving forward with him on much wider renovation works across the property. Michael worked closely with us throughout the entire process—from early ideas and structural planning through to execution. He consistently provided insightful, practical advice that added real value. His ability to anticipate issues early not only prevented problems but also helped us save money by refining the plans to maximise our goals and avoid unnecessary costs. Michael’s broad knowledge and skill set were hugely beneficial on a project of this size and within a tight budget. He made the process far less stressful and, at times, genuinely enjoyable. He kept me informed and involved at every stage, which gave me a great deal of confidence in both the quality of the work and the decisions being made throughout. Michael helped us renovate every corner of our four-bedroom maisonette in West London—from bathrooms and structural opening-up works to a full kitchen renovation, hard landscaping, flooring, and carpentry. The list goes on. His wide skill set and depth of knowledge were truly impressive and exactly what we needed, particularly as we chose to stay closely involved in the renovation rather than hiring a larger construction and project management company. We genuinely don’t feel we could have made a better choice. It’s not always easy to find a builder who is reliable, honest, and trustworthy, so I feel very fortunate to have worked with Michael. I would recommend him without hesitation and will absolutely continue to work with him on future projects, big or small.
Rose Projects
Rating: 5 out of 5
Extension Builder in West Kensington
At Rose Projects we build to your lifestyle, A family run business with a fresh approach covering all aspects of Construction. Craftsmanship is our main focus always maintaining high standards. We work along side Architects, Engineers and Designers We have an organised team of qualified tradesmen which take pride in there work with projects completed on time and budget. References available upon request, Come and see previous projects for ideas.
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Latest review:
Extensions- 26 Sep 2022
Excellent work with the garden office/gym. Finished really nicely and exactly what we were looking for. Took quite a while but well worth the wait. We requested a labour quote and worked with Alf on a receipts basis for material and other costs. This worked out perfectly for us both. Alf's initial estimate of the materials cost was virtually spot on, which is very impressive given the inflation rate for building materials. Thanks again for all your hard work!
Josef McLeod
Rating: 4.9 out of 5
Extension Builder in West Kensington
Welcome and thank you for visiting my page! Plumbing/ Bathrooms/ Electrical/ Kitchens/ Tile and Stone Work/ Conversions With over 25 years of personal experience in the UK construction industry, in both residential and commercial sectors, with job profile which includes from managerial to "hands on" roles and hundreds of happy customers, you can be reassured your project is in safe hands. My team is professional, fully qualified and experienced tradesmen, dedicated to achieving excellent results, no matter how big or small the project is.
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Latest review:
Plumbing- 2 Mar 2026
Andrian did a great job fixing the leak in my bathroom. He also came up with a fantastic storage solution for my closet by installing a removable timber shelf. He is returning to do more jobs in my flat. I can highly recommend him.
Perfect work
Rating: 5 out of 5
Extension Builder in West Kensington
Main Builders, carpenter, metal work, painting, brick work, underpinning, grand work ,tiles and bathroom, roof tiles,loft conversion, extension,kitchen furniture, laminate flooring and engineering flooring, plumbing, electric,....
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Latest review:
Kitchen Fitting- 14 Nov 2022
Bogdan installed kitchen with good attention to detail and resolved issues along the way. Thank you
SONIM
Rating: 5 out of 5
Extension Builder in West Kensington
SONIM LTD is a South London–based construction and refurbishment company specialising in high-quality residential projects. We deliver loft conversions, home extensions, kitchen and bathroom renovations, flooring installation, plumbing, and full property refurbishments with a strong focus on craftsmanship, attention to detail, and reliability. Whether you're expanding your home, upgrading your kitchen or bathroom, or undertaking a complete renovation, our experienced team is committed to delivering exceptional results — on time and within budget. At SONIM LTD, we believe in clear communication, transparent pricing, and building long-term trust with our clients. Your vision is our priority.
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Latest review:
Restoration & Refurbishment- 3 Nov 2024
Ion and his team were great, they worked really hard and the final result is fantastic, we are really pleased and will use them again! Ion gave lots of helpful advice.
MPQ SERVICES LTD
Rating: 5 out of 5
Extension Builder in West Kensington
My name is Youssef, and I’m an experienced plumber with a strong track record of delivering reliable, high-quality work. I specialize in both residential and commercial plumbing, including installations, repairs, and maintenance. With years of hands-on experience, I take pride in being punctual, professional, and committed to getting the job done right the first time. Client satisfaction and safety are always my top priorities.
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Latest review:
Plumbing- 8 Sep 2025
Great service, quick, efficient.. problem completely solved. Would highly recommend.
Mile Kresojevic
Rating: 5 out of 5
Extension Builder in West Kensington
Hi, I am experienced self-employed carpenter with 10 years in various projects, working directly for clients while entrusted for their property. Good English, punctual, trustworthy and a reliable time keeper. Can provide references on request.
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Latest review:
Carpentry- 5 Dec 2017
Mile was prompt in supplying a quote and fitted us in within days. He was tidy in his work, pleasant to deal with and reasonable with his quote, we will use him again should we need any carpentry work.
O&L Renovations
Rating: 5 out of 5
Extension Builder in West Kensington
I've been working in Buiding all my working life. I undertake full referbs and smaller jobs. My work is to the highest standard
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Latest review:
Handyman- 3 Sep 2017
Good work, good price and done quickly without any hassle. Highly recommend Jamie and his team.
Ogival Ltd
Rating: 4.5 out of 5
Extension Builder in West Kensington
Ogival Ltd, located in North Kensington, is a trusted local builder with extensive experience. Your one-stop provider of home refurbishments, property modifications, and alterations What separates Ogival from our competition is our exceptional service and support. We thrive on being a unique, personable company because building trusting relationships with our customers ensures a successful and enjoyable renovation project. We offer a full range of building services, from major rebuilds to smaller jobs We offer a 6-month Warranty on labour.
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Latest review:
I have used this company for years for many different jobs including painting my whole house, tiling my bathroom, laying flooring, astroturfing my garden and also putting up fences too, they are very knowledgable, professional and polite, the work is always done efficiently to a very high standard and I’ve never had an issue. I recommend Emanuel and his team to everybody. If you want a company that care, I’d stick with Ovigal!
Velvet Construction
Rating: 5 out of 5
Extension Builder in West Kensington
About Velvet Construction: 5+ year experience in the building trade. CSCS Black Card Holder All health and safety certificates. Velvet Construction has a large team of qualified tradesmen, delivering a high standard of workmanship at a competitive price. For more information on our services please contact us. We offer free quotations and all work is insured and guaranteed.
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Latest review:
Restoration & Refurbishment- 10 May 2019
Velvet Construction are a friendly and professional contractor who work hard to deliver an excellent service. We have worked closely with them and their practical and dynamic approach is refreshing to work with in a professional capacity and we would highly recommend them. Their quality of workmanship is excellent which is largely driven by their own high standards which they monitor closely and consistently. They are organised and communication is always great. A big thank you to the whole team and Specially Negedet being a joy to work with . Highly recommend him and his hard work time. Thank you
first4builders
Rating: 5 out of 5
Extension Builder in West Kensington
Loft conversions, house extensions. All kinds of renovation and refurbishment: doors and windows, flooring, tiling, bathroom and kitchen fitting. Building with confidence!
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Latest review:
MR ZAIKA DID A BIG JOB FOR ME,WHICH HE FINISHED IN GIVEN TIME .HE BUILT A REAR EXTENTION,AND DID RENOVATION SUCH AS FLOORING,REMOVING AND INSTALLING DOORS,TILING,REMOVING AND CHANGING WINDOWS,BUILDING A NEW KITCHEN,AND BATHROOM.HE WAS RELIABLE AND DID EVERYTHING TO THE BEST OF HIS ABILITY AND AS HE HAD PROMISED. HIS WORK IS EXTREMELY PROFESSIONAL AND CLEAN I AM VERY HAPPY WITH MR ZAIKA'SWORK . I WOULD RECOMMEND MR ZAIKA HIGHLY AND I AM SURE ANYONE GIVING HIM WORK WOULD BE VERY HAPPY AS I HAVE BEEN.

4.2

Top rated Extension Builders

Our Extension Builders in West Kensington, are rated 4.2 out of 5 based on 20 reviews from customers like you.

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What types of services are offered by local extension builders in West Kensington?

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in West Kensington for you. They can help with a variety of tasks and projects, including:

Extending your home with an extra room
Two+ storey extensions
Adding partition walls to create more rooms
Building annexes or external structures

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in West Kensington who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen West Kensington extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in West Kensington?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in West Kensington will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several West Kensington extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your West Kensington home extension project is likely to cost.

Find extension builders in West Kensington with MyBuilder

Hiring the right extension builder in West Kensington with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local West Kensington extension builders. Once your job is live, we’ll share it with home extension builders in West Kensington who can express their interest.

Step 2: Compare different extension builders in West Kensington

When you start receiving interest, review profiles of local West Kensington extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire West Kensington extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in West Kensington, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

West Kensington extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a West Kensington extension builder before hiring?

Before hiring an extension builder in West Kensington or extension building company in West Kensington, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in West Kensington?

An extension builder in West Kensington should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your West Kensington extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in West Kensington?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the West Kensington extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most West Kensington extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in West Kensington

Can an extension builder in West Kensington help with planning permission?

Yes, many extension builders in West Kensington can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in West Kensington handle everything from design to construction?

Many West Kensington extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in West Kensington help with materials and finishes?

Yes, most extension builders in West Kensington can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.